Biscuit-coating machine.



H. TIETJENS.

BISGUIT OOATING MACHINE. APPLICATION FILED Anm, 1'909.

Patented Dec. 14, 1909.

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nn tiran erreiche entranti? omiten;

HEINRICH TIETJENS. OF HAMBURG, GERMANY. ASSIGNOR TO HANNOVERSCHE CAKES FABRK B.. BAHLSEN. OF HANOVER, GERMANY.

BISCUIT-COATING MACHINE.

Slet-3.28%.

Specification of Letters Patent.

mtentetl Dec.. 14, 1909.

Application filed April 8, 1909. Serial No. 488,690.

'o all 'whom fit may concern:

Be it known thaty I. Hi-nxincn 'l`nc'rarzxs, a citizen ot (lerinany, residing` at'llaint'an', (erniany. have invented new and useful linproreincnts in Biscuit-Coating Machines. ot which the following is a specification.

ThiA inrention relates to machines` tor coating; one surface ot' biscuits. calice or other articles with sugar or the lihe, and han' tor itl ohject to 'facilitate the coating' ot' auch articles and their renioral troni the hand on which they arecoatet'l.

ln the accompanying drawing: Figure l is an elevation ot lny machine 'tor coating hiscuits. and Fig. 2 a plan thereoi?.

Over rollers l and Q an endless cloth li is. Vtretcheth above which are guided. so as to inalt'e contact' with the cloth. longitudinally arranged conreyer threadfs ttl pasantg; around rollers il. i. arranged beyond rollers l. and 2. aaid threads extending` nonne distance 'oeyond the delivery end of cloth li. ft roller dipping into icingl in a tank l5. applic.` the coating' nieditun uniformly to the` cloth li and the lhrcadx lt. The hiscuitsl are tiret' received hy a t'eed cloth )t and parts over the roller l onto the threads ttt and the cloth iT. f whereupon they adhere to the icing' on the t hand l? until the roller is reached. after n'hh'h. nntil they conte to the roller il. they i are carried exclusively hy the threzds; t3. .tt the point where the threads turn at'tcr par --inf over their roller-hl 2%. the hiacnita tall npnn cloth 233 that passes orcr roller ti. and at the ,annalinie inalt'c a turning over mort-- nrt-ni and cnnain iic on the-ii:l lnicoated nr Unef. thi i# dne tn the roller haringy nnall diameter. as that the hiacuihV are ec. detached and on coiniirgy into contact with the hand il are turned orcr onto their uncoated nnriat'e ince lne direction otl moreA nlcnt ol' the conreycr-hand lil i opponitc to that otI thread` tti. so that ita tant side acts on the. edge ol thc hiscnit on thc coated Side and` consequently turna the hiwnil ahoutthin` edge over onto it nncoated snrt'acc. ielow the rollers' t and hctwcen the sante. a nnxnher ot' rollera 25 arc loosely inountcd on a pindley itt. so that their peripheries project beyond the, lower or returning,l thrends lt'. and any hiscnit till adlnn'ingr` to these threads are trippcd oli' a nl fall upon thc cloth 23. the

latter, as beforej effecting the 'turning` over ot the articles. At the lower turning point T, ot hand Q3, the biscuits are` placed onto an endless hand :'24 ot cloth or wire netting, by nrcany of which they are arried into a dry.- ing chamber or taken np to the drying `grids.

To prevent icing which inay drip oli' the under side of the hand 1T Jfront falling,l onto the biscuits already iced or onto the cloth 33, an endless hand 2r is stretched around rollers 'l2 and t3, and driven by rneam ot a roller 1l. This cloth takes up any icing which niay fait troni the coating` hand and Carries it hack to the tank. where it is Stripped ott' and into which it' tails. A Shield il is provided helow the thread@4 1t onto which any icing troni thc threadn talla. whence it is directed to the cloth 2S. a general rule, howerer, the threads do not conrey sufficient icing: to franse inconveniein'e in this respect.

it will he understotal thatrnot only biscuits hut any other articles ot any size can he coated hy means ot this machine and that the details ot construction may vary considerably withont departingv troni this invention.

l claim:

t. )t machine ot' the character conn-raising a tiret pair o rollers. an en tred apron engaging the saine, a second EL.. nr ot rollers placed at a greater distance traan each other linut the tiret pair of roller.. a eerie# ol' long jittnlinaliy arranged er la engaging said second pair ot r tese ri he d i compr-laine' a tiret pair ot rollcra.v an endless telai apron engaging the saine. a `aecond pair ol roiierwy pla-:cd at a greater distance troni cach other than the t'irst pairV of rollers. a series ot longitudinally arranged endless threads engaging said :second pair ot roller-f, and extending' heyond the upper rnn ot tho 'feed apron.y a coating' roller engaging the apron. and a con\'e \'er.hand arranged helow tln` discharge ends ol" the threads and trarclingl in a direction opposite lo that oi the threads.

2S. machine of the character deacrihet-l,` comprising' a i'irSt pair of rollers. an endlessl feed apron engaging the same, a second pair ranged in proximity to the discharge ends ofv of rollers placed at a greater distance from the threads.

l0 each otlier than they first pair of rollers, a Signed by me at Hamburg Germany this series of 4longitudinally arranged endless 23d day of March 1909. 5 threads engaging said second pair of rollers HEINRICH TIETJ ENS. and extending beyondv the upper run. of the Witnesses:

feed apron, a coating roller engaging the ERNEST H. L. MUMMENHOFF,

apron, and a. series of stripping rollers ar- I OTTO W. HEnLMRroH. 

